| Titre : |
Modeling and numerical simulation of laminated thermoplastic composites manufactured by laser-assisted automatic tape placement |
| Type de document : |
texte imprimé |
| Auteurs : |
Gilles Ausias, Auteur ; G. Dolo, Auteur ; D. Cartié, Auteur ; F. Challois, Auteur ; P. Joyot, Auteur ; J. Férec, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 471-479 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse thermique
Composites à fibres -- Soudage
Composites à fibres de carbone
Composites thermoplastiques
Modèles numériques
Pose de rubans automatisée
Simulation par ordinateur
Stratifiés
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
A comprehensive numerical model is developed for the simulation of the laser-assisted automated tape placement process of carbon fiber/thermoplastic composites. After being heated with a laser, the thermoplastic is welded with the help of a consolidation roller onto a substrate made up of layers of tapes bonded onto one another. Under the pressure applied by the roller, the thermoplastic flows and the tape reaches its final thickness. The numerical model is developed in three sequential steps that can be used to identify the required pressure and temperature distribution to achieve a good bond. Firstly, a heat transfer simulation is performed to determine the temperature distribution into the incoming tape under the consolidation roller. Secondly, a rheological model is developed to examine the polymer flow under the roller and to obtain the pressure field. Finally, the consolidation level between the substrate and the tape is investigated through the degree of intimate contact, which is related to the processing parameters such as the roller velocity, the laser power density and the compaction force. |
| Note de contenu : |
- MATERIAL AND PROCESS : Material - Process and experiments
- Thermal analysis
- Flow modeling under the consolidation roller : Principle - Governing equations
- MODEL PREDICTION : Numerical implementation - Simulation results - Abacus on process behavior
- CONSOLIDATION |
| DOI : |
https://doi.org/10.3139/217.3976 |
| En ligne : |
https://drive.google.com/file/d/1nup1rB0jZUCrtgFPgYjypHgIKLpQqKer/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35069 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXV, N° 5 (11/2020) . - p. 471-479
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Ajouter le résultat dans votre panier Affiner la rechercheDétermination des coefficients rhéologiques d'un thermoplastique chargé de fibres courtes / Gilles Ausias in LES CAHIERS DE RHEOLOGIE, Vol. XI, N° 3-4 (10/1993)
